Hydroconversion of xylose derived ketals: A key strategy for producing A broad range of green-hydrocarbons suitable as fuels and petrochemicals

Pereira, Sérgio Castro; Souza, Matheus Oliveira de; Esteves, Laura M.; Batalha, Nuno; Lam, Yiu Lau; Pereira, Marcelo Maciel

doi:10.1016/j.apcata.2020.117911

Cited by 5 publications

(5 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our previous work ( Pereira et al, 2021 ), a pristine HZSM-5 was impregnated with Pd and its performance on DX HDO reactions in a batch reactor was investigated. This section evaluates an HZSM-5-type catalyst (Pd/HZSM-5) performance in an optimized DX HDO reaction condition used by Pd/HBEA.…”

Section: Resultsmentioning

confidence: 99%

“… *Further details about Pd/HZSM-5 catalyst and its characterization data can be found elsewhere ( Pereira et al, 2021 ). …”

Section: Resultsmentioning

confidence: 99%

“…For instance, in a low catalyst/DX ratio of 1/2, no n-hexane conversion was observed, while DX was fully converted. *Further details about Pd/HZSM-5 catalyst and its characterization data can be found elsewhere (Pereira et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…The former produced mainly aromatics and light olefins. The latter produced aliphatic, cyclic, and aromatic hydrocarbons ( Batalha et al, 2014 , Batalha et al, 2017 ; Pinto et al, 2019a , Pinto et al, 2019b ; Pereira et al, 2020 , Pereira et al, 2021 ). Further, the wide variety of metal/support catalysts used in the HDO process is an advantage since it enables the conversion of different biomass-derived molecules into green fuels.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hydrodeoxygenation of Xylose Isopropylidene Ketal Over Pd/HBEA Catalyst for the Production of Green Fuels

et al. 2021

View full text Add to dashboard Cite

1,2:3,5-Di-O-isopropylidene-α-D-xylofuranose (DX) is a major component of a new bio-crude: a viscous oil presenting petroleum-friendly properties produced by the ketalization of sugarcane bagasse. This article studies DX HDO (hydrodeoxygenation) over a Pd/HBEA catalyst in a batch reactor at 250°C. The effects of hydrogen pressure from 10 to 40 bar, catalyst/DX ratio from ½ to 2, and reaction time 0–24 h were investigated. A range of conditions for complete hydrodeoxygenated DX into alkanes with a Pd/HBEA catalyst was found. In these conditions, a low coke yield with water as the principal deoxygenated product was obtained. Further, higher amounts of alkanes containing seven or more carbons (A7+) were favored at 30 bar of hydrogen pressure, Cat/DX ratio = 2, and short reaction time. Products analysis that accompanied the above variations during reaction time led to general insights into reaction pathways. First, in the presence of DX, an effective n-hexane conversion was not observed on experiments of low catalyst/DX ratio (½) or in the initial period of high Cat/DX ratio, suggesting DX is much more successful than n-hexane to compete for active sites. Then, the formation of a pool of oxygenated compounds, such as furans, ketones, and carboxylic acids, along with lighter and heavier alkanes was observed. Hence, the aforementioned oxygenates may undergo reactions, such as aldol condensation with subsequent hydrodeoxygenation reaction, generating heavier alkanes.

show abstract

Section: Resultsmentioning

confidence: 99%

“… *Further details about Pd/HZSM-5 catalyst and its characterization data can be found elsewhere ( Pereira et al, 2021 ). …”

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrodeoxygenation of Xylose Isopropylidene Ketal Over Pd/HBEA Catalyst for the Production of Green Fuels

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Due to their unique properties, such as pore size, acidity, surface area, and shape selectivity, zeolites are widely used in industry. For instance, they can be used as adsorbents [1,2], ion exchangers [3], fertilizers [4,5], and catalysts [6][7][8][9]. The zeolite structures applied in catalytic industrial processes are Y (FAU), beta (BEA), ZSM-5 (MFI), mordenite (MOR), and ferrierite (FER), commonly known as the "big five" [10].…”

Section: Introductionmentioning

confidence: 99%

Lignin as a Bio-Sourced Secondary Template for ZSM-5 Zeolite Synthesis

2022

View full text Add to dashboard Cite

The aim of this study was to investigate the effect of the addition of lignin as a sacrificial agent in ZSM-5 zeolite synthesis. Peculiar growths of ZSM-5 crystals leading to various textural properties were observed. Hence, the behavior in acid-catalyzed conversion of methanol into hydrocarbons (MTH) shifted from high selectivity toward olefins (>55%) to the sole formation of dimethyl ether (DME). Lignin acted as a bio-sourced secondary template (BSST), impacting the zeolite crystals’ shape and, thus, their physicochemical properties.

show abstract

Reaction network and kinetics for the one-pot hydrogenolysis of cellulose to ethylene glycol over NiOx-WOy-Cu/MgAl2O4

Liang

Chen

et al. 2021

Reac Kinet Mech Cat

View full text Add to dashboard Cite

Hydroconversion of xylose derived ketals: A key strategy for producing A broad range of green-hydrocarbons suitable as fuels and petrochemicals

Cited by 5 publications

References 46 publications

Hydrodeoxygenation of Xylose Isopropylidene Ketal Over Pd/HBEA Catalyst for the Production of Green Fuels

Hydrodeoxygenation of Xylose Isopropylidene Ketal Over Pd/HBEA Catalyst for the Production of Green Fuels

Lignin as a Bio-Sourced Secondary Template for ZSM-5 Zeolite Synthesis

Reaction network and kinetics for the one-pot hydrogenolysis of cellulose to ethylene glycol over NiOx-WOy-Cu/MgAl2O4

Contact Info

Product

Resources

About